Running of the coupling and quark mass in SU(2) with two adjoint fermions

Details Running of the coupling and quark mass in SU(2) with two adjoint fermions Running of the coupling and quark mass in SU(2) with two adjoint fermions

2009-10-14

arxiv.org/abs/0910.2562v1

PoS LAT2009:056,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk presented at the XXVII International Symposium on Lattice Field Theory, July 26-31, 2009, Peking University, Beijing, Chi

Scientific paper

We simulate SU(2) gauge theory with two massless Dirac fermions in the adjoint representation. We calculate the running of the Schroedinger Functional coupling and the renormalised quark mass over a wide range of length scales. The running of the coupling is consistent with the existence of an infrared fixed point (IRFP), and we find 0.07 < gamma < 0.56 at the IRFP, depending on the value of the critical coupling.

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